Wrapping-machine.



PATENTED DEC. 24, 1907.

"J. M. PATTERSON. WRAPPING MAGHINE.

APPLIOATIQN FILED FEAR. 2, 1906.

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P ATBNTED DEC. 24, 1907. J. M. .rATTsRsoN. WRAPPING MACHINE: APPLICATION FILED'IAR. 2. 19U6.

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m WWW PATENTED DEC. 24, 1907.

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. L w Q W W w PATENTED DEC. 24, 1907.

Lin. PATTERSON. WRAPPING MACHINE. 'nrmonlox nun pa. 2. 190a.

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J. ML PATTERSON- wmrrme MACHINE.

APPLIOATIOI FILED HA3. 2; 1906.

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' v A CORPORATION or CALIFORNIA.

NITED STATE$ PATENT OFFICE.

JAMES M. PATTERSON, OF Los ANGELES, CALIFORNIA, AssIGNoR, BY DIRECT ANDMESNE ASSIGNMENTS, TO NATIONAL WRAPPING MACHINE (30., OF LOS ANGELES, CALIFORNIA,-

' 'WRAIPPING-MAGHINE.

Specification of Letters Patent.

Patented Dec. 24, 190"?- Applioationflled March 2, 1906. Serial No. 303.802.

To all whom it may concern: I v

' Be it known that I, JAMES M. PATTERSON, a' citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State. of California, have invented new and useful Improvements in Wrapping-Machines, of .which the following is a specification.

My invention relates to a machine for wrappingl rectangular quadrilateral packages suc as cakes of butter, soap, raisins or other packages of like nature; and the ob'ect thereof is to produce a machine that will quickly wrap a paper around such package. I accomplishthis object by the mech anism described herein and-illustrated in .the accompanying drawings'in' which:'

Figure 1..is a plan ofmy machine with r a portion of the end wrapping mechanism broken away. Fig. 2.is a slde elevation of my. machine with partsbroken away for clearness ,of illustration. Fig. 3.is a section on the line 3-3 of Fig.1, Fig.

'4.'is a section on the line 44 of Fig. 1-.

Fig. '5.;.is a perspective view of one side of the end wrapping mechanism and apor- 3 tion of the bottom of the delivery chute.

Fig. 6.is a sectional detail of a portion of the wrapper movingmechanism. Fig- 7 is a "detail of a portion of the mechanism for movin the package while the top and ingturned and for ejecting the package from the machine.

. a perspectwe view of the end of a slab of butter'partly wrapped.

Mounted upon the frame 20 0f the machine is the paper wrapper tra 21 which holds the paper wrappers 46 w 'ch are to be wrapped around the packages. This tray is held at an elevation above the table or platform 22 as best shown in' Fig.- 2' of the.

shaft 27 which shaftis provided wit "drawings. Mounted upon shaft 23 is a pulley 24 which is driven by belt 25 which passes around a pulley 26 on the owfir t e fast and loose (pulleys 28 and 29 ofusual construction. the side of pulley 24 is a pin 30 which during a port-ion of the revolution of the wheel engages bar 31 at notch 32, shown in dotted-lines in Fig. 2 and carries the. bar backwardly until the pin is disengaged from'the notch, the wheel 24 rotating in thedirection of the arrow.

The downward movement of bar 31 is stopped by a pin 33 mounted in the end of the crank arm 34 which ,is' secured upon shaft 35; which last shaft has an arm 36 to which is pivotally connected a rod 37 whose other. end is pivotally connected. 'to the operating lever 38 provided, with dog 39, which dog engages, the toothed rack 40', so that whendesired bar 31 can be held out of engagement with pin 32. Bar 31is pivotally connected to arm 41 which last "arm is rigidly secured to shaft 42.

shaft 42 are adjustably mounted the wrapper moving-arms 43 which carry'on their 7 outer ends the paper picking studs 44 whose outer ends or face is coated with some. slightly adhesive'substancewhich will cause the paper to stick to the studs; As best shown in Fig.2 it will be seen tha the rotation of wheel 24 causes 'pin 30 to engage with bar 31 at notch 32 and carry the "wrapper moving arms 43 to the position shown in Fig.2, that is parallel to and almost in contact with table 22. The further movement of the wheel causes the disengagement of pin 30 frem the bar 31, where upon springs 45 which are coiled around shaft 42 and have one end secured to the table and the other end bearing against the under side of the wrapper moving arms, will carry said arms up to the pa or holding tray, when the paper picking stu s will come in contaet with tray. It will be seen that this movement of the wrapper moving arms will carry bar=31 and slightly adhere to the first wrapper in the toward the frontpart of the tableand into a. position for pin 30 to engage notch 32 in the bar and carry the wrapper moving arms .back to the positionshown in Figs. 1 and 2 'By this last movement a paper'wra per 46 is removed from the tray and place overatrapdoor 47 in the to of the table, the position of the wrapper. being shownin dotted lines .in'Fig. .1. Just before the wrapper moving arms cometo rest in, their outward l movement, or movement toward the front of theftable, a stud l8 strikesthe top of the table'andlis caused to move through an .aper

" ture 49 in the end of the arm. This stud carries a sleeve 50 which surrounds the paper picking stud-and the upward movement of this sleeve releases the paper wrapper from the paper picking studs. The erator then laces a slab of butter 19 or ot er package that is to be wrapped upon the paper upon the center of the trap door. The wei ht of the article carries the paper downward y between led es 51 which are placed on the top of the table at each side of the trap door as best shown in Figs. 1 and 3.

On shaft 23 are rigidly mounted cam whee1s52 and 53 the tops of which projectthrough apertures 54 in the topof the table. These cam Wheels are rovided on the face thereof with irregular sl iaped grooves 55 and 56, the grooves 111 each wheel being oft-he same shape, and the wheels are so mounted on the shaft that the curved portion of the groove of one wheel is set on the quarter as to the grooved portion of. the othef cam wheel. Pivotally mounted at 57 is a lever 58, the rear end of which carries a pin 59,

- roller 63 which engages the upturned side of the paper wrapper.

shown in dotted lines in Figs. 1 and 2, which pin enters groove ofcam wheel 52, whereby upon the rotation of the. cam wheel, when the pin enters the curved portion of the groove the forward end of the lever is first moved toward the center of'the table and then moved back from the center of the table to the position shown in Fig.- 1 and while the pin is in the straight portion of the groove.

the lever has no motion whatever. The

front end of lever 58'passes throu h a slot 60. in the tongue 61 which is secured'to one of the top folding plates 62.

In the edge' of this top plate opposite the tongue is mounted the paper wrapper as the top folding plate 62 is moved toward the center of the table and turns it down upon the p acka e 'bei'ng wrapped. If desired the-edge of th the folding plate could be rounded and the roller dispensed with, but I prefer the roller as it gives a rolling. contact instead of a slid.

ing contact between the folding'plate and Tongue 61 is guided in its 'movementby' the bars 64 and65 between which it moves,

At each end and adjustably secured to the under side of top plate 62 are the edge-end turning slides 66 and 67 which are longitudinally and horizontally divided into upper e top of- Trap door 47 is -'I '-shaped and is connected to the top ofthe table by 'nge 83' .the upper half'in case the thickness of the package being wrapped exceeds the width of the two halves of the slide, thereby permitting the lower half to ress the lower part of the end flap flat upon 1: e table; The ends of .these slides adjacent to the slides on the other side of the table are pointed and the sides of the slides 66 and 67 adjacent to each other are likewise curved away from-each other at the pointed end so that the first contact with. the paper will be at the center and at a little distance from the end of the package, so that-"the pa er may be evenly folded against the end of t e package with an equal fold above and below. The rotation of cam wheel-52 causes pin 59 of lever 58 to enter the groove at a point which will first cause the orward end of the ,lever-to move toward the center of the table thereby causing the side of the wrapper on that side of the ackage to be folded down on'the top and t e edge at each end to be folded in against the end of the package and to be pressed fiat upwardlyand downwardly as shown in Fig. 14. U pon the other side of the table and pivotally connected thereto at 73 is a lever 74 having a pin 75 which projects downwardly into roove 56 of cam w eel 53. V passes through a slot 7 6 in a tongue 76 which 18 secured to theother top folding plate 77.

The front end 0 lever 74 In the edge of this top platev op osite the t'ongue is mounted roller 78 whic engages the upturned side of the paper Wrapper on that side of the package as the top folding plate'77 is moved toward the center of the table and turns it down upon the. package being wrap ed. Tongue 76 is guided in its r movement y the bars 79 and 80 between which it moves. At each end-and adjustably'secured'to the under side of the top plate. 77 are the edge-end turning slides 81' and 82 which are constructed and operate the same as slides 66 and 67. The move ment of lever 74; is preferably so timed that 'it 1 10 begins to move to carry'the top late toward the other top late just as the ot er-top platehas reached t e extreme inward limit of its movement toward the center of the table. ivotally (see Fig. 3). A counter-balancing bar 84 is pivoted at 85 to a bearing 86 which is secured tothe table. jects inwardly and lies beneath the trap 'oor and the other end carries a counter-balance] The front end of bar 84- roweight 87, which is adjustablv secured-uponthe bar. A locking bar 88 slidable through bearings 89.tnd 90 holds the trap door in its locked'position during the time the paper wrap er is being placed over' the trap door and uring the movement of the top plates as before described. Asprin 91 is secured to bearing 90 and the other en is secured to the locking bar near bearing 89 so as to withdraw the end of the locking bar from beneath the trap door and unlock the same whenever cam 92, which is mounted on shaft 23, ,will permit 1 vthe backward ovement of the locking bar. .1 ,This cam is en aged 10 roller 93 which is car- {5; ried bythe rearcndo the lockin bar as best -;'sho m1 in Figs. 1 and 8, and itswi l be seen by ian ins ction of Fig. 8' that the locking bar will on y be withdrawn'from under the end of the trap-.door a very short time. The move- 10 ment of this'fcam is so timed that the trap ing plate has' folded the top-and edges of the Tapper onits side. '-As soon as the trap 7; oo'r sunlockedthe weight of the package 16 hereon causes he same to sink until the {package thereon slides off the trap door upon lthebottom'oft e end wrapping rnechamsm, '1 the lear end o .w h ich slants-upwardly as shownin'Fig.3. j 20 j- In ihctice thatithepackage will j slip 0d thetra'p' door by the time the trap I 'doorreachesithe planeofthe upturned end ;.of the bottom of the end wrapping mechanf-'? f .ism'. ,As soon {as the package slips off the .25 trap. door the countereweight immediately i brings thedoor. backgto its horizontal position in which it forms a part of the table top, eudfthat this movement occurs in amp e time for tlie door to be locked by the holding {being forced back under it bycam 92. the-bottom '94 ,of the end wrapping mechnism isa slot-95, and belowthis slot is an jector slide 96 whichis held in position and supported by bearin plates 97 a'nd98 which edges 1 and project partly I @butfa ainet the, unde'r t efejectorshde .and are secured to the bottoniof the end wrap ing mechanism. f'Thcrcjector slide is rovi ed at the ends thereof with carrying ugs 99 and 100 which so project upwardly in the slot in thebottom of; the end .wrappingmechanism. These car 'lu s'are united to the ejector slide by e downwardly in the direction of the outer end .46 ofjthe end wrapping mechanism and can turn in the other direction so as to stand at right angles to the face of the slide. Lug 99 is cause to assume a position at right angles to the face of the-slide byspring-IOL one end of which is secured to the lug and'the other to the slide upon the ,back thereof. Lug 100 is causedto project upwardly in the slot by a curved spring 102 secured to the slide, the free end 'ofwhich bears against the front side of the lug. To the ejector slide is' pivotally connected a link bar 103, the

other end of which, is pivotally connected to the ejector operating lever 104. This lever is pivoted at 105 to a bearing 106 which is secured to the bottom of the table, The end'of lever 104 is ,as shown in 2;

roundedas' shown in Fig. 7 and projects into groove 55 of the cam wheel 52 and as said cam wheel is rotated, when the rounded end enters the curved portion of the groove the vdoor isunlocked as soon as .the last top fold-- this doub e curved surface and to be borne 'dow'nwardly thereby and by the time these ges which permit? the lugs to turn- .rear end of the to ledge on the lower side lever is moved to cause the ejector slide to travel nearly to the end of the end wrapping mechanism. Hinged to the outer end 0 the ejector slide on the under side thereof is a sto leaf 117 which is provided with lugs 1.18 an 119, which when the ejectorslide is in the position shown in Fig. 3, the same being 'its extreme limit of inward motion, project through apertures 108 and 109 in the bottom of the end wrapping mechanism and act as a stop to prevent the package from sliding further down the end wrapping mechanism before the ejector slide begins to move. 7 A leaf 110 is also hingedto the under side of the top and is engaged by' the package as it passes through the end wrapping mechanism which better insures the holding of the wrap per u on the package.

As efore stated the paper wra er which incloses the package has been folilbd longitudinally with the edges ofthe end turned i as shown Fig. 14 and the wrapper is in this position when the package slides off the trap door upon the bottom of the delivery chute. The sides of the end wrapping mechanism are of a configuration to properly fold the projecting ends 46 and 46 as the package travels through theend wrappin mechanism. In the first place the vertica height of the sides 111 of the'end wrapping mechanism is a little in excess of the thickness of the package. To the vertical wall 111 is secured an over-hanging front ledge I 112, the front portion of which, is curved longitudinally and transversely on the under side and the front corners of the ledges ad' jacent to each other are rounded. The object of this configuration is to cause the projectin' end 46? ofthe wrapper to strike curves run out the projecting end 46 is.

pressed down in ti ht contact with the end of the package an is held in lace by the vertical inner ed e-of the le ge. Asthe package passes a ong the lower rojecting end flap 46 engages a bottom edge 113 which has its front edge sharpened and curved the curve commencin at the vertical wall and sloping toward t e rear end and up- 115 .wardly as best shown in Figs. 3, 5, and 10.

The top and, bottom ledges are separated leaving a channel between them, and the curves longitudina 1y and transversely, but the curve commences at the 'vertical wall I curving upwardly and backwardlyso that the flap 46" may be turned-upwardlyby the bottom ledge .asgthejja'ackage passes. along. After the package has'reached the rear end of the slotbetween theledges the pro ecting flaps at the ends arefolded neatly uponithe ends of the ackage. The-move ment of the ejector elicit; is sufiieientto. carry suflicient height that upon the, movement of the ejector slide toward the end of theend wrapping mechanism it engages the packa e and forces it out of the end wrapping -mec anism. One of the sides of the end wrapping. mechanism is slidably mounted upon thebottom and is held thereon by pins 114 which pass through bearings 115 secured to the bottom. Between these bearings and the vertical wall of the side are springs 116 which are coiled around the pins. By using these s rings a pressure may be placed upon the en flaps as they are being tu ed and also gives an adjustability to different lengthed packages within the limit of the movement of the spring. The curved ortions of the grooves of cam wheels 52 an 53 can be off set differently from the quarter if desired, but I prefer the quarter as one plate commences to move back from the trap door as the other moves toward it'by this arrangement, thus keeping the top of the wrapper held down. r

Stop leaf 117 on its movement toward the rear end of the end wrapping mechanism swin s down until the In s engage the forwar end of the slots, 6n the movement toward the other end of the end wra ping mechanismitenga es the slanting ui e bar 121 which causes t e free end of t e leaf to move upwardly to carry the lugs so they will project no throu h the slots. The sides 21 ofthepaper holding tray are adjustable to f adapt the tray for use with paper of different tion is heldin alinement with the other part. by a spring 124 which permits the forward widths. Arm 31 is composed of two parts hinged together at 123 and the forward porpart to break upwardly to release it from pin 30. v

' Having described my invention What I 1. A wrapping machine, com rising a frame having a top forming a tab e; a trap door in said table; top-folding plates slidably mounted on said table, one on each side of said trap door; edge-end folding slides secured to said top-folding plates; and mechanism for reciprocating said plates.

2. In a wrapping machine, a frame having a top forming a table; a trap door in sai table; ledges at the sides of said trap door;

of and the other portion curving away from the straight portion and then back to straight portion, the curved portion of the groove of one .cam being ofiset as to the curved portion of the roove of the other cam; two levers pivotal-y secured upon said table top, the ends of said levers being 0 eratively connected with said top plates and said cams. I

, 3. In a wrapping machine, a frame havi a top forming a table; a trap door in sai table, said trap door being pivotally connected to said table; and'means for locking and unlocking said trap door.

4. In awrapping machine, a frame havi a top forming a table; a trap door in sai table, said trap door being pivotally connected to said table; counter-balancing means o eratively connected to said trap door; and means for locking and unlocking said trap door.

5. In a wrapping machine, edge-end fold-.

ing slides having pointed front ends and having the adjacent portions of the pointed ends curving away from each'other, said slides being lon itudinally and horizontally and centrally vided and being adjustably secured together; and mechanism "for reciprocating said slides. 1

'6. In a wrapping machine, a frame ha a top forming a table; a trap door in ai l table; ledges'at the side of said trap door; mechanism for locking and unlocking said door; mechanism upon said table for folding the edges, top and end edges upon the package; and mechanism below the top of the end flaps at the top and bottom es having their package are olded adapted to project inwardly therefrom, and 7 means for adjusting the vertical sides for different size packages.

9. A wrapping machine, comprising a table, top-folding plates mounted on the table,

edge-end folding slides secured thereto, and

means for reciprocating the slides whereby one of the plates will have reached its inward movement before the other plate begins its inward movement, and the first named plate is withdrawn at the beginning of the inward movement of the last named plate.

10. In a wrapping machine, a frame having a top forming a table; said table having apertures therein; a shaft mounted below of said levers said Wrapper turning slides are said table; two can). wheels having irregular reciprocated.

shaped grooves in the face thereof mounted I In Witness that I claim the foregoing I on said shaft, said 0am Wheels projecting l have hereunto subscribed my name this 23rd through the apertures in said table; pivoted s day of February, 1906.

levers mounted upon said table and having l AMES L ATTERS N. the ends preparing into the grooves in said i J 1v P O emu; wrapper turning slides mounted upon Witnesses; stud table and operativcly-connected to said G. E. HARPHAM,

pivoted levers whereby upon the movement HENRY T. HAZARD. 

